Code
P003F
LAND ROVER
P — Powertrain
Intake cam profile control (A) locked - Bank 2
Views:
UK: 20
EN: 22
RU: 14
AI status
Completed
Completed
100%
Causes
- Stuck or seized intake cam phaser/actuator on Bank 2
- Faulty oil control valve (VVT/VCT solenoid) for Bank 2 intake
- Contaminated or low engine oil (preventing actuator movement)
- Wiring fault or connector corrosion to the VVT solenoid or cam actuator (open/short)
- Timing chain, sprocket or phaser mechanical failure
- PCM/software fault or incorrect calibration
Symptoms
- Check Engine Light (MIL) illuminated
- Reduced engine performance, poor throttle response
- Rough idle or hesitation under load
- Increased fuel consumption and emissions
- Knocking/abnormal noises from timing cover area in some cases
What to check
- Read freeze frame and live data for camshaft position and VVT status (Bank 2 intake)
- Confirm current and past DTCs; note any related cam/crank correlation codes
- Check engine oil level and condition (contamination, sludge, very dark viscous oil)
- Visually inspect wiring and connectors to the Bank 2 intake oil control valve and cam actuator for damage/corrosion
- Backprobe/monitor VVT solenoid signal while commanding the solenoid ON/OFF from a diagnostic tool
- Measure voltage supply and ground to the solenoid with key ON and while commanding
Signal parameters
- VVT/Oil control solenoid supply voltage: nominal battery voltage (approx. 11–14 V) when powered
- Control signal: PCM commands duty cycle 0–100% (varies by engine load/RPM)
- Solenoid coil resistance (typical range): ~8–30 Ω (compare to manufacturer spec)
- Camshaft actual vs commanded timing: expected to follow commands within a few degrees under normal operation; large discrepancy indicates actuator lock
- Engine oil pressure: normal operating pressure as per engine spec (low pressure can prevent phaser movement)
Diagnostic algorithm
- Retrieve DTCs and freeze-frame data; confirm P003F is current and note related codes.
- Check engine oil level and quality; correct oil level and if oil is dirty/sludgy, perform an oil and filter change and re-test.
- Visually inspect wiring and connectors to the Bank 2 intake VVT solenoid and cam actuator; repair any damage or poor connections.
- With a diagnostic tool, command the Bank 2 intake VVT solenoid ON/OFF while monitoring voltage and duty cycle; verify the solenoid is receiving proper supply and switching to ground.
- Measure solenoid coil resistance and compare to spec; if open/short or out of range, replace the solenoid.
- If solenoid appears to operate electrically, remove the solenoid and inspect for metal debris or blockage in oil ports; clean or replace as required.
- If solenoid and oil passages are OK, inspect the cam phaser/actuator for mechanical seizure or internal failure; replace the phaser/chain assembly if seized or damaged.
- After repairs, clear codes and road test while monitoring camshaft timing and confirm the actuator follows commanded positions and that P003F does not return.
- If steps above do not resolve, consider PCM software update or replacement per manufacturer guidance.
Likely causes
- Oil control valve (VVT solenoid) failed or stuck
- Mechanical seizure of cam phaser (worn or broken internal components)
- Low oil level or severely degraded oil blocking oil ports
- Wiring/connectors open or short affecting solenoid control
Fault status
Status
Intake cam profile control (A) locked - Bank 2 (cam phaser/actuator not responding)
Repair difficulty: Medium
Diagnostic time: 1.5-4.0 hours
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